Used MESA/Boogie Formula Pre Guitar Preamp

Used MESA/Boogie Formula Pre Guitar Preamp in great condition, offering classic all-tube tone with three fully independent channels—Clean, Rhythm, and Lead. Powered by five 12AX7 tubes, it delivers vintage warmth to aggressive overdrive, making it ideal for versatile guitarists. Includes standard output and FX loop connections for flexible rig integration. Perfect for studio or live setups, this preamp maintains the legendary MESA/Boogie sound in a compact rackmount design.